|| Brachyspira hyodysenteriae|
||Genus name: short spiral
Species epithet: from pig with dysentery|
|Significance:|| [Very important]
|Old Species Name(s):||Treponema hyodysenteriae, Serpula hyodysenteriae, Serpulina hyodysenteriae|
||B78 = ATCC 27164 = NCTC 13041|
|Forms small irregular colonies (0.1-1 mm in diameter) spread over the agar surface (the bactera "swarm" on the agar plate). Gives a strong hemolysis on blood agar.
||Thin (0.3-0.4 x 6-11 µm), spiral shaped and motile. Has 22-28 periplasmic flagella (endoflagella or axial filaments) per cell.
||Video clip showing the motility of this species.
|Gram +/Gram -:||G- (Appear as G -, but has another type of cell wall).
||Anaerobic, but aerotolerant|
||Tryptophanase (indol) +, hippuricase -, α-galactosidase -, β-glucosidase +
|Fermentation of carbohydrates:
||Pigs, mallards and rheas (related to ostriches)|
|Disease (English):||Swine dysentery|
The size of the plasmid is 35 940 bp.
|CPOO1357 & CPOO1360 ||WA1 ||3 036 634 ||1c + 1c ||Nr 93|
|16S rRNA Seq.:
Ribosomal RNA genes are not organized in one single rRNA operon in B. hyodysenteriae.
|Acc-no||Strain||Number of NT||Operon|
|U14930 ||(T) ||1433 ||1 |
|Seven species with standing in nomenclature has been described within genus Brachyspira. About 10 additional species have been reported, but their names have not been approved. Some of these species have been included in the phylogenetic trees and their names are given within quotation marks (see Fig. 97:5 and 6).
All species within the genus Brachyspira are very closely related, but "B. corvi", B. aalborgi and B. pilosicoli differ significantly from the other species.
||No. 9, 43, 44, 64, 92|
||The Swedish Brachyspira, Leptospira and Treponema Group|